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Brain networks underlying the differences in audiovisual integration for reading between children and adults and its disruption in dyslexia

Abstracts

Building robust letter-to-sound correspondences is a prerequisite for reading, and such audiovisual integration becomes progressively automatic with development. However, the neural mechanisms underlying the development of audiovisual integration for reading are largely unknown. This study used functional magnetic resonance imaging (fMRI) in a lexical decision task to investigate the changes of brain functional networks that support audiovisual integration for reading between normally developing children (9-12 years old) and adults (20-28 years old). The identified networks were further examined in children with developmental dyslexia (9-12 years old). Results revealed that adults enhanced connectivity in a prefrontal-superior temporal network relative to children, reflecting the attentional modulation to the development of audiovisual integration. Moreover, this network was disrupted in dyslexics, confirming its essential role in audiovisual integration for reading. This study, for the first time, elucidates the neural basis underlying the development of audiovisual integration for reading.
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From: 毕鸿燕
DOI:10.12074/202010.00002
Recommended references: Hong-Yan Bi,Junjun Li,Yang Yang,Nestor Vi?as-Guasch,Yinghui Yang.(2020).Brain networks underlying the differences in audiovisual integration for reading between children and adults and its disruption in dyslexia.[ChinaXiv:202010.00002] (Click&Copy)
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[V1] 2020-10-10 17:36:06 chinaXiv:202010.00002V1 Download
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